Summary

Description: .12-Foot Free-Flight Tunnel under construction: The free-flight wind tunnel is a steel sphere 60 feet in diameter and can be supplied with air compressed up to two or more atmospheres in which the operators will work. A decompression chamber is provided so that the operators can return gradually to normal atmospheric pressure. The tunnel itself, which is mounted on a steel framework inside the sphere, has a test section diameter of 12 feet and is about 30 feet long. The drive consists of a 600-horsepower electric motor turning a 15-1/2 foot diameter propeller. The whole apparatus is mounted on bearings so that the tunnel can be tilted through a wide range of angles to correspond to the angle of glide of the model airplane...UID: SPD-NIX-EL-2001-0015 3

National Advisory Committee for Aeronautics

SIA2008-5016

Gabriele Rabel (b. 1880)

30 x 60 Full Scale Tunnel

Women in Colonial Costume - “Australia's March to Nationhood” Australian 150th Anniversary Celebration

12- Foot Free-Flight Tunnel

Tower Bridge (nearly)

Administrative Structures - Arizona

Ukraine, Pervomaisk - SILO Dismantlement - April 1996 - Conversion of former Soviet Union (FSU) ICBM site at Pervomaisk, Ukraine to Factory and residential community. Pervomaisk was the former location of the 46th Division of the 43rd Rocket Army of the Soviet Strategic Rocket Forces, formed during the Cold War. Interior/Exterior views of residential homes under-construction, warehouse containing modular units

Ukraine, Pervomaisk - SILO Dismantlement - April 1996 - Conversion of former Soviet Union (FSU) ICBM site at Pervomaisk, Ukraine to Factory and residential community. Pervomaisk was the former location of the 46th Division of the 43rd Rocket Army of the Soviet Strategic Rocket Forces, formed during the Cold War. Interior/Exterior views of residential homes under-construction, warehouse containing modular units

Ukraine, Pervomaisk - SILO Dismantlement - April 1996 - Conversion of former Soviet Union (FSU) ICBM site at Pervomaisk, Ukraine to Factory and residential community. Pervomaisk was the former location of the 46th Division of the 43rd Rocket Army of the Soviet Strategic Rocket Forces, formed during the Cold War. Interior/Exterior views of residential homes under-construction, warehouse containing modular units

Ukraine, Pervomaisk - SILO Dismantlement - April 1996 - Conversion of former Soviet Union (FSU) ICBM site at Pervomaisk, Ukraine to Factory and residential community. Pervomaisk was the former location of the 46th Division of the 43rd Rocket Army of the Soviet Strategic Rocket Forces, formed during the Cold War. Interior/Exterior views of residential homes under-construction, warehouse containing modular units

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